BEGIN {
    item[101]="HD Camcorder";
    item[102]="Refrigerator";
    item[103]="MP3 Player";
    item[104]="Tennis Racket";
    item[105]="Laser Printer";
    item[1001]="Tennis Ball";
    item[55]="Laptop";
    item["na"]="Not Available";    

    # 'in' is a keyword, all elements will be displayed.
    # element with 'na' index will be displayed at first
    for(x in item)
        print "index ", x, ": ", item[x];
}

